(1992. december 7.) „Antimicrobial screening of essential oils and extracts of some Humulus lupulus L. cultivars”. Pharm Weekbl Sci14 (6), 353–356. o. DOI:10.1007/bf01970171. PMID1475174.
(1992. december 7.) „Antimicrobial screening of essential oils and extracts of some Humulus lupulus L. cultivars”. Pharm Weekbl Sci14 (6), 353–356. o. DOI:10.1007/bf01970171. PMID1475174.